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Date:   Tue, 19 May 2020 20:29:16 +0200
From:   Andrew Lunn <>
To:     Jakub Kicinski <>
Cc:     Dan Murphy <>,,,,,,
Subject: Re: [PATCH net-next 2/4] net: phy: dp83869: Set opmode from straps

On Tue, May 19, 2020 at 09:58:18AM -0700, Jakub Kicinski wrote:
> On Tue, 19 May 2020 09:18:11 -0500 Dan Murphy wrote:
> > If the op-mode for the device is not set in the device tree then set
> > the strapped op-mode and store it for later configuration.
> > 
> > Signed-off-by: Dan Murphy <>
> ../drivers/net/phy/dp83869.c: In function0 dp83869_set_strapped_mode:
> ../drivers/net/phy/dp83869.c:171:10: warning: comparison is always false due to limited range of data type [-Wtype-limits]
>   171 |  if (val < 0)
>       |          ^

Hi Jakub

This happens a lot with PHY drivers. The register being read is a u16,
so that is what people use.

Is this now a standard GCC warning? Or have you turned on extra


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